Broad Overview
We completed two service visits on the ozone trailer and found the system turned off both times due to issues outside the ozone equipment. After restarting it, the ozone and oxygen systems were working properly. Most problems were caused by support equipment, including low compressor oil and a likely failed air dryer. We repaired several components, completed annual maintenance, and restored normal operation where possible. Next steps include fixing the air dryer, improving system controls, and adding a filter to prevent future pump issues. We also recommend simple routine checks (oil levels, water flow, alarms) to help avoid shutdowns.
Englewood – Ozone Trailer – Internal Summary
Service visits: Dec 22–23, 2025 and Jan 12–13, 2026.
Application Background: The Englewood site is a drinking water reservoir treated with ozone before the municipal water treatment plant (WTP). This reduces pond slime and other organic material, helping the WTP operate more efficiently, use fewer chemicals, and improve taste and odor (T&O) quality.
Condition Upon Arrival
Compressed air / dryer
- Dryer fuse blown initially; dryer runs electrically but showed poor drying performance (heat indicator into red; moisture downstream).
- IR later diagnosed failed refrigerant compressor in the air dryer → replacement likely required (pending final confirmation).
Air compressor
- Customer concern: “high temperature shutdowns.” Root cause appears to be low oil level, not a cooling system fault. After oil service, compressor ran ~1 hour in ~118°F trailer temp without tripping.
Sump / flow / pump control
- Temporary sump pump initially could move water but not enough to satisfy flow switch; flow switch bypassed. Pump control wiring had overloads bypassed.
Injection
- Injection pump had no flow due to debris blockage; injector leaking water/ozone at port.
Chiller
- Chiller water level low on both visits; 1st visit had foamy/aerated water and remote start disabled.
Repairs & PM work completed
Repairs performed
- Restored compressor oil level and corrected remote start/stop wiring.
- Installed replacement sump pump, corrected rotation, restored overload wiring, set backpressure to 16 psi, returned flow switch to normal operation.
- Cleared debris from injection pump and replaced injector.
- Controls: ozone flush logic flagged for revision; added destruct for O2 purity sensor (proactive).
PM tasks completed
- Air compressor (~5929 hrs): oil/filter/separator/belt, filters, tank drain rebuild, drained water from tank.
- O2 concentrator (~5781 hrs): rebuilt feed/waste valves, replaced filters, checked valves, performance testing at 50 & 75 LPM.
- Injection: replaced Kynar check valve; pump rebuild deferred until strainer is added.
- Ozone generator: rebuilt outlet MVB; verified leak sensors OK.
Remaining service work
- Air dryer repair/replace + verify downstream moisture issue resolved; then replace O2 conc filters as needed.
- PLC/HMI ozone flush logic revision.
- Install Y-strainer upstream of injection pump, then inspect/rebuild pump.
- Confirm chiller remote start/run-signal behavior and “sleep” mode expectations.
Debris in sump area (caused injection pump clogging) no basket/strainer on the temporary pump
For service and repair needs, contact us today! Our skilled team is willing to provide excellent service and custom recommendations for your applications.
Customer-Facing Operational Recommendations
- Weekly: check chiller water level (tap water; add glycol mix in winter if leak-related).
- Weekly/monthly: check compressor oil level.
- Daily: if any warnings/alarms/out-of-spec readings → contact contractor or OT immediately.
- Add 2” Y-strainer (1/8” mesh) and include daily screen/pressure checks.
